How to set props in react native

Question

I am using react native. Here's my code.

function mapStateToProps(state) {
  return {
    markers: state.markers,
  };
}

I set props using mapStateToProps and it only called when I dispatch an action. I can set state using setState({..}); like this.

Here's my question. How can I set props? Is there anything like setProps({..})?

Set props for what? mapStateToProps allows you to select state from the redux store and injects that state into your component — linasmnew
– linasmnew, Commented Oct 4, 2017 at 14:08
Show us your reducer that handles the markers state and if you've made any actions for it. — MattyK14
– MattyK14, Commented Oct 4, 2017 at 14:09
Yeah, right. But is there anyway to change props without using redux? — Jun
– Jun, Commented Oct 4, 2017 at 14:10
My actions and redux works well. But I want to set my props manually without using redux. — Jun
– Jun, Commented Oct 4, 2017 at 14:11
Sorry i don't understand your question and what you're trying to do — linasmnew
– linasmnew, Commented Oct 4, 2017 at 14:23

user3344460 · Accepted Answer · 2017-10-04 16:22:06Z

1

It seems like you're using Redux. If you do, make sure to have both reducer and action scripts. The reducer is used to get a value from a specific state property or properties.

You have to define a function in your action script to assign or set a value to your specific state property and properties. You also need a store to bring both reducers and actions together.

The store initializes everything and allows you to dispatch actions and set or get values.

answered Oct 4, 2017 at 16:22

user3344460

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Comments

LYu · Accepted Answer · 2017-10-04 20:12:13Z

1

Two common ways of passing the props.

From Redux Store Like what you have done in your code.
From other Components Props can be passed by

<Foo prop1={bar} />

And in your Foo Component the props of prop1 is whatever bar is.

answered Oct 4, 2017 at 20:12

LYu

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Jun Over a year ago

Is there anyway to change props byself in component?

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